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Contract OI history

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Jan 15, 2027 EXPIRATION

ALNY $400.00 Put

ALNY270115P00400000

Latest saved OI0Oct 20, 2026
Last change-100vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ALNY $400.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 100500 2026-10-09: 100 OI2026-10-13: 100 OI2026-10-14: 100 OI2026-10-15: 100 OI2026-10-16: 100 OI2026-10-20: 0 OI Oct 09, 2026Oct 20, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ALNY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing0-100
Oct 16, 20261000
Oct 15, 20261000
Oct 14, 20261000
Oct 13, 20261000
Oct 09, 2026100No prior observation